Approximately synchronous with the onset of Heinrich Stadial 1 (HS1), δC decreased throughout most of the upper (~1000–2500m) Atlantic, and at some deeper North Atlantic sites. This early deglacial δC decrease has been alternatively attributed to a reduced fraction of high-δC North Atlantic Deep Water (NADW) or to a decrease in the NADW δC source value. Here we present new benthic δO and δC rec...

Abstract The North Atlantic region experienced abrupt high-amplitude cooling at the onset of Younger Dryas stadial. However, due to chronological uncertainties in available terrestrial records it is unclear whether ecosystem response this event was instantaneous and spatially synchronous, or regional time-transgressive lags existed. Here we use new palynological results from a robustly dated la...

This paper proposes an optimal transmission expansion planning (TEP) which is based on determining share of each line in merchandizing surplus (MS) of system, determining by Independent System Operator (ISO). The more share of a line in MS of system denotes the priority of a line for expansion. The procedure of determining MS of each line in a power system is based on determining the MS share o...

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a blocker of postsynaptic acetylcholine receptors was isolated from venom of the eastern green mamba dendroaspis angusticeps, by gel filtration, ion-exchange and reverse phase high performance liquid chromatography. the isolated component blocks neuromuscular transmission and responses to exogenously applied acetylcholine in isolated chick biventer cervices preparations. these results suggest t...

conclusions health care providers need to pay special attention to sexual transmission of hcv among hiv-infected individuals, and should recommend control/preventive measures for hcv sexual transmission. results age of the index samples was 38.71 ± 7 years, and 33.2 ± 6.3 for their main heterosexual partners; the mean duration of sexual relationship for couples was 11.9 (median = 8.5) years. mu...

effects of venom from black scorpion androctonus crasicuda (ac) were determined on isolated chick biventer cervices nerve-muscle and mouse hemidiaphragm preparations using twitch tension method. the isolated nerves were stimulated by electrical stimulator and response to each stimulus was recorded. the venom mainly acted prejunctionally to facilitate neuromuscular activity due to an increase in...